Novanta SYNRAD Pulstar p100, Руководство пользователя

Страница: 42 / 89

RF POWER SUPPLY PAGE | 37
Table 3-4 Assist gas purity specifications.
Assist Gas Typical Purpose Specification
Air Cutting/ Drilling
Breathing Grade > 99.9996% purity; filtered to ISO Class 1
particulate level
Air Cutting/Drilling
Compressed Instrument-grade air filtered and dried to ISO 8573-
1:2010 Class 1, 2, 1 (< 10 1.0– 5.0 µm particles/m3; < –40 °F (–40
°C) dew point < 0.01 mt; g/m3 oil vapor)
Argon Welding
High Purity Grade > 99.998% purity; filtered to ISO Class 1
particulate level
Helium Welding
High Purity Grade > 99.997% purity; filtered to ISO Class 1
particulate level
Nitrogen Cutting/Drilling
High Purity Grade > 99.9500% purity; filtered to ISO Class 1
particulate level
Oxygen Cutting/Drilling > 99.9998% purity; filtered to ISO Class 1 particulate level
RF Power Supply
p100/150 lasers are driven by two compact RF modules mounted internally in the laser chassis. Each RF
module converts 48 VDC input power into a radio frequency (RF) signal that is then amplified and
routed to its corresponding electrode structure in the laser tube where it excites the gas mixture in the
tube to produce lasing.
Control circuity built into the laser interrupts operation if any critical parameter is violated. Switches and
sensors on the control board monitor various conditions and parameters that, if exceeded, pose a risk of
potential damage to the laser. Additionally, laser operation is interrupted in response to the following
conditions: (1) the shutter is closed; (2) the Shutter Open Request input signal is missing; (3) an over
temperature or low coolant flow condition occurs; (4) the Remote Reset/Start Request input signal is
enabled; (5) the Remote Interlock input signal is missing; or (6) any fault is present.
Control Signals
The Controlling laser power section includes subsections:
• Control Signals
• Operating Modes
p100/150’s five user outputs correspond to the status functions described in the following Output Signal
Section. These outputs are opto-isolated solid-state relays that allow for high-side or low-side switching.
The shared connection, Output Common, is separate from the laser’s chassis ground to allow high-side
or low-side switching and to isolate control signals for optimum EMI performance. The optically isolated
outputs are useful for sending laser status to a Programmable Logic Controller (PLC) or computerized
control system. Each of the five outputs: Pins 6, 7, 8, 13, and 14 can source 50 mA at ±24 VDC maximum
for a total load of 250 mA. When controlling larger loads, use these outputs to drive a control relay.
Important Note: Because all OEM p100/150 lasers incorporate a built-in tickle generator (2- 6
μ
s
pulses at 5kHz), there is no need to supply external tickle pulses. The application of external tickle
pulses may affect the p100/150’s pulsing performance.